4S2P(4 serial and 2Parallel) Lion battery charger management IC selection Request

prabha Karan

Other Parts Discussed in Thread: BQ25703A

Hello,

I planned to design power bank with 4S2P(4 serial and 2Parallel) Lithium-ion battery cell configuration.

Battery voltage 3.6V/5A each.

I can give two Input power supply both 19VDC/3A and 5VDC/1.5A (For 5VDC we need to boost the voltage from 5VDC to 19VDC so please provide the voltage boost circuit also for this area). This project is very urgent.

over 7 years ago

0 prabha Karan over 7 years ago

Prodigy 120 points

Hello,
Anyone, please reply to my doubts.

0 Wang5577 over 7 years ago in reply to prabha Karan

TI__Guru 56650 points

Please check bq25703A which is an I2C buckboost charge which can support both 5V input; 19Vinput and charge 4s Lion battery charger.

0 prabha Karan over 7 years ago in reply to Wang5577

Prodigy 120 points

Mr.Wang,
Thank you... But I need 4S2P Battery configuration..

0 Wang5577 over 7 years ago in reply to prabha Karan

TI__Guru 56650 points

If the battery cell is in paralleling, the charger treats it as a same cell, just double the charging current.

So, bq25703A can support both 4S2P or 4S1P. Just the 4S2P charge current setting could be higher than 4S1P.

0 prabha Karan over 7 years ago in reply to Wang5577

Prodigy 120 points

Mr.Wang,
Thank you...How to set the charge current limitation .

0 Wang5577 over 7 years ago in reply to prabha Karan

TI__Guru 56650 points

Charge current register can set the charge current limit.

Power management

Power management forum

4S2P(4 serial and 2Parallel) Lion battery charger management IC selection Request